Author: hselasky
Date: Mon Nov 25 10:58:02 2013
New Revision: 258545
URL: http://svnweb.freebsd.org/changeset/base/258545
Log:
Comply to the XHCI specification. Certain input context fields should
always be zero.
MFC after: 1 week
Modified:
head/sys/dev/usb/controller/xhci.c
Modified: head/sys/dev/usb/controller/xhci.c
==============================================================================
--- head/sys/dev/usb/controller/xhci.c Mon Nov 25 10:49:17 2013
(r258544)
+++ head/sys/dev/usb/controller/xhci.c Mon Nov 25 10:58:02 2013
(r258545)
@@ -2540,7 +2540,11 @@ xhci_configure_device(struct usb_device
xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx2, temp);
- temp = XHCI_SCTX_3_DEV_ADDR_SET(udev->address) |
+ /*
+ * These fields should be initialized to zero, according to
+ * XHCI section 6.2.2 - slot context:
+ */
+ temp = XHCI_SCTX_3_DEV_ADDR_SET(0) |
XHCI_SCTX_3_SLOT_STATE_SET(0);
xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx3, temp);
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